Notes, Journal, Diary: PenCake vs Voca AI - Learning a language
Notes, Journal, Diary: PenCake
Diffathy, Inc.
App Store
$11/mo
~$135/yr · 5K installs
VS
Voca AI - Learning a language
BUD Technologies, Inc.
App Store
$851/mo
~$10.2K/yr · 91K installs
Revenue winner
Voca AI - Learning a language wins
+7636% vs other
Installs winner
Voca AI - Learning a language wins
+1646% vs other
MAU winner
Voca AI - Learning a language wins
+1661% vs other
Rating winner
Voca AI - Learning a language wins
+4% vs other
Why Voca AI - Learning a language is winning
Top 3 reasons - backed by the public App Store / Play Store numbers.
- Voca AI - Learning a language earns roughly 77× more per month than Notes, Journal, Diary: PenCake - $851 vs $11.
- Premium pricing. Voca AI - Learning a language charges $2.50/mo vs Notes, Journal, Diary: PenCake's $0.58/mo - higher ARPU per converted user.
- Bigger install base. Voca AI - Learning a language has ~91K lifetime installs vs Notes, Journal, Diary: PenCake's ~5K - 17.5× the funnel top.
→ Find more apps with this revenue gap · Full Voca AI - Learning a language report
Side-by-side metrics
Bars scale to whichever app is bigger on that row. Green = winner.
Notes, Journal, Diary: PenCake
vs
Voca AI - Learning a language
Monthly revenue (est.)?
$11
▶
$851
Annual revenue (est.)
$135
▶
$10.2K
Lifetime installs (est.)
5K
▶
91K
Monthly active users (est.)?
598
▶
11K
App Store rating
4.27★
▶
4.45★
Total ratings
104
▶
1K
US grossing rank
-
=
-
Cheapest monthly sub
$0.58
▶
$2.50
IAP tiers detected
7 tiers
=
7 tiers
- Category
- Lifestyle
- Price
- Free
- Released
- May 24, 2018
- Last updated
- Dec 31, 2025
- File size
- 98.2 MB
- Content rating
- 12+
- Version
- 3.16
- Languages
- English, Japanese, Korean, Portuguese, Chinese, Spanish +1 more
- Category
- Lifestyle
- Price
- Free
- Released
- Jun 26, 2025
- Last updated
- Jun 30, 2026
- File size
- 106.4 MB
- Content rating
- 4+
- Version
- 1.29.0
- Languages
- English
Notes, Journal, Diary: PenCake trajectory
Voca AI - Learning a language trajectory
FAQ
Which makes more money, Notes, Journal, Diary: PenCake or Voca AI - Learning a language? v
Voca AI - Learning a language earns about $851 per month, while Notes, Journal, Diary: PenCake earns about $11. That is a 77.4× revenue gap (~$840 more per month for Voca AI - Learning a language). Annual revenue: Notes, Journal, Diary: PenCake ≈ $135/year, Voca AI - Learning a language ≈ $10.2K/year. Estimates are derived from public App Store signals - grossing rank, scraped IAP tiers, ratings and category benchmarks.
Which has more downloads, Notes, Journal, Diary: PenCake or Voca AI - Learning a language? v
Voca AI - Learning a language leads with about 91K estimated downloads vs 5K for Notes, Journal, Diary: PenCake - a 17.5× gap. Notes, Journal, Diary: PenCake's App Store downloads are estimated from 104 ratings × the standard 1:75 ratio. Voca AI - Learning a language's App Store downloads are estimated from 1K ratings.
Are Notes, Journal, Diary: PenCake and Voca AI - Learning a language in the same App Store category and competing for the same money? v
Yes - both apps sit in the Lifestyle category, which means they compete directly for the same paying users and category-level wallet share. Direct competitors, head-to-head.
What in-app purchases and subscription pricing do Notes, Journal, Diary: PenCake and Voca AI - Learning a language offer? v
Notes, Journal, Diary: PenCake: IAP range 7 tiers detected. Voca AI - Learning a language: IAP range 7 tiers detected. Notes, Journal, Diary: PenCake runs a "Subscription (~$0.58/mo)" monetization model; Voca AI - Learning a language runs "Subscription (~$2.50/mo)". Scraped tier prices and detected subscription pricing drive the bulk of the per-app revenue estimate above.
Which has better ratings, Notes, Journal, Diary: PenCake or Voca AI - Learning a language? v
Voca AI - Learning a language edges ahead with ★ 4.4 vs ★ 4.3 (gap of 0.2 stars). Rating volume: Notes, Journal, Diary: PenCake 104 ratings, Voca AI - Learning a language 1K ratings. Higher rating volume = stronger ASO signal even when star averages are close.
How accurate are these Notes, Journal, Diary: PenCake vs Voca AI - Learning a language revenue estimates? v
Directional - typically within 2-3× of actual money earned for popular apps. The $11 for Notes, Journal, Diary: PenCake and $851 for Voca AI - Learning a language are derived from App Store grossing rank, scraped IAP tiers, ratings volume and category benchmarks (Lifestyle) - net of the 15-30% Apple/Google store cut. Real revenue depends on country mix, retention, refunds and ad fill rate, none of which Apple or Google publish.
How do I compare Notes, Journal, Diary: PenCake or Voca AI - Learning a language to a different App Store app? v
Use the search box at the bottom of this page or paste any two App Store links into the homepage tool. We auto-generate a permanent comparison URL with revenue, downloads, IAP tiers, subscription pricing and grossing rank for both apps.